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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 // Classes that describe assembly patterns as used by inline caches. | 4 // Classes that describe assembly patterns as used by inline caches. |
5 | 5 |
6 #ifndef VM_INSTRUCTIONS_ARM_H_ | 6 #ifndef VM_INSTRUCTIONS_ARM_H_ |
7 #define VM_INSTRUCTIONS_ARM_H_ | 7 #define VM_INSTRUCTIONS_ARM_H_ |
8 | 8 |
9 #ifndef VM_INSTRUCTIONS_H_ | 9 #ifndef VM_INSTRUCTIONS_H_ |
10 #error Do not include instructions_arm.h directly; use instructions.h instead. | 10 #error Do not include instructions_arm.h directly; use instructions.h instead. |
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47 intptr_t* index); | 47 intptr_t* index); |
48 }; | 48 }; |
49 | 49 |
50 | 50 |
51 class CallPattern : public ValueObject { | 51 class CallPattern : public ValueObject { |
52 public: | 52 public: |
53 CallPattern(uword pc, const Code& code); | 53 CallPattern(uword pc, const Code& code); |
54 | 54 |
55 RawICData* IcData(); | 55 RawICData* IcData(); |
56 | 56 |
57 RawCode* TargetCode() const; | 57 uword TargetAddress() const; |
58 void SetTargetCode(const Code& code) const; | 58 void SetTargetAddress(uword target_address) const; |
59 | 59 |
60 // This constant length is only valid for inserted call patterns used for | 60 // This constant length is only valid for inserted call patterns used for |
61 // lazy deoptimization. Regular call pattern may vary in length. | 61 // lazy deoptimization. Regular call pattern may vary in length. |
62 static int DeoptCallPatternLengthInBytes(); | 62 static int LengthInBytes(); |
63 | 63 |
64 static void InsertDeoptCallAt(uword pc, uword target_address); | 64 static void InsertAt(uword pc, uword target_address); |
65 | 65 |
66 private: | 66 private: |
67 const ObjectPool& object_pool_; | 67 const ObjectPool& object_pool_; |
68 | 68 |
69 uword end_; | 69 uword end_; |
70 uword ic_data_load_end_; | 70 uword ic_data_load_end_; |
71 | 71 |
72 intptr_t target_code_pool_index_; | 72 intptr_t target_address_pool_index_; |
73 ICData& ic_data_; | 73 ICData& ic_data_; |
74 | 74 |
75 DISALLOW_COPY_AND_ASSIGN(CallPattern); | 75 DISALLOW_COPY_AND_ASSIGN(CallPattern); |
76 }; | 76 }; |
77 | 77 |
78 | 78 |
79 class NativeCallPattern : public ValueObject { | 79 class NativeCallPattern : public ValueObject { |
80 public: | 80 public: |
81 NativeCallPattern(uword pc, const Code& code); | 81 NativeCallPattern(uword pc, const Code& code); |
82 | 82 |
83 RawCode* target() const; | 83 uword target() const; |
84 void set_target(const Code& target) const; | 84 void set_target(uword target_address) const; |
85 | 85 |
86 NativeFunction native_function() const; | 86 NativeFunction native_function() const; |
87 void set_native_function(NativeFunction target) const; | 87 void set_native_function(NativeFunction target) const; |
88 | 88 |
89 private: | 89 private: |
90 const ObjectPool& object_pool_; | 90 const ObjectPool& object_pool_; |
91 | 91 |
92 uword end_; | 92 uword end_; |
93 intptr_t native_function_pool_index_; | 93 intptr_t native_function_pool_index_; |
94 intptr_t target_code_pool_index_; | 94 intptr_t target_address_pool_index_; |
95 | 95 |
96 DISALLOW_COPY_AND_ASSIGN(NativeCallPattern); | 96 DISALLOW_COPY_AND_ASSIGN(NativeCallPattern); |
97 }; | 97 }; |
98 | 98 |
99 | 99 |
| 100 class JumpPattern : public ValueObject { |
| 101 public: |
| 102 JumpPattern(uword pc, const Code& code); |
| 103 |
| 104 static const int kLengthInBytes = 3 * Instr::kInstrSize; |
| 105 |
| 106 static int pattern_length_in_bytes(); |
| 107 |
| 108 bool IsValid() const; |
| 109 uword TargetAddress() const; |
| 110 void SetTargetAddress(uword target_address) const; |
| 111 |
| 112 private: |
| 113 const uword pc_; |
| 114 |
| 115 DISALLOW_COPY_AND_ASSIGN(JumpPattern); |
| 116 }; |
| 117 |
| 118 |
100 class ReturnPattern : public ValueObject { | 119 class ReturnPattern : public ValueObject { |
101 public: | 120 public: |
102 explicit ReturnPattern(uword pc); | 121 explicit ReturnPattern(uword pc); |
103 | 122 |
104 // bx_lr = 1. | 123 // bx_lr = 1. |
105 static const int kLengthInBytes = 1 * Instr::kInstrSize; | 124 static const int kLengthInBytes = 1 * Instr::kInstrSize; |
106 | 125 |
107 int pattern_length_in_bytes() const { | 126 int pattern_length_in_bytes() const { |
108 return kLengthInBytes; | 127 return kLengthInBytes; |
109 } | 128 } |
110 | 129 |
111 bool IsValid() const; | 130 bool IsValid() const; |
112 | 131 |
113 private: | 132 private: |
114 const uword pc_; | 133 const uword pc_; |
115 }; | 134 }; |
116 | 135 |
117 } // namespace dart | 136 } // namespace dart |
118 | 137 |
119 #endif // VM_INSTRUCTIONS_ARM_H_ | 138 #endif // VM_INSTRUCTIONS_ARM_H_ |
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